Simple plugin which allows you to display author/user info inside WordPress widget. Smart feature of this plugin is user/author “auto detection” which means that it can optionally show author of current post on single post templates or on specific author archive.
Related to WordPress Plugin Meks Smart Author Widget
This plugin makes it easy to display lists of user avatars, grouped by user roles, on your (multiuser) site. It also allows you to insert single avatars for blog users or any email address into a post or page – great for displaying an image of someone you’re talking about.
Easy Author Image gives you the option do you exactly that — easily add an author image to your profile page. Once you install this plugin, you’ll have a new option in the Your Profile tab (under Users) called Profile Picture, complete with a media uploader box that allows you to upload your very own author picture.